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11th April 2021, 01:40 AM #1Member
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Hand plane shavings and dust collection
Right now I don't have a power jointer, so all the initial surfacing I do by hand. This produces a lot of hand plane shavings. I put those shavings in a 30 gallon paper leaf bag. Two questions:
1. Months from now when I have a ClearVue cyclone setup, is it reasonable to sweep those hand plane shavings into a floor sweep that is connected to the dust collector? Then I wouldn't need the paper bag, which would save floor space. The shavings are more like a rag than a wood chip, so I wonder if they might clog the ducts or get stuck in the impeller. They are quite fluffy, so I assume I would need to empty the dust bin often.
2. If I had a 3 HP, single stage collector, is sending a bunch of hand plane shavings through the impeller a big no-no? Will they just wrap around the impeller?
Mark
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11th April 2021, 09:23 AM #2.
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Absolutely.
An alternative is to connect a bit of flexy to the ducting and add a length of 4" ducting and use it like a vac. This is better than a broom which generates heaps of fine dust during the sweeping process. I also use it to clear tops of benches etc
Dutwandp1.jpg
The shavings are more like a rag than a wood chip, so I wonder if they might clog the ducts or get stuck in the impeller.
As far as single stage DCs go, shavings might look like a rag but they are usually more brittle so the impeller will tend to mince them up a bit. The only time I have seen them get stuck is when heaps of them are dumped into a air intake and flood the impeller probably because it not able to mince them up.
They are quite fluffy, so I assume I would need to empty the dust bin often.
2. If I had a 3 HP, single stage collector, is sending a bunch of hand plane shavings through the impeller a big no-no? Will they just wrap around the impeller?
If you only use hand tools, and have some form of forced shed ventilation to vent fine dust, and all you want is to collect chips, then a big DC is not required.
DCs are filthy things and actually make fine dust from large chips, plus they tend to leak so the simplest way to deal with this is to locate (or enclose them in an airtight chamber and vent) them outside the shed.
The leakiest DCs tend to be those that are towed around inside a shed so to get the DC venting outside the some form of fixed ducting is required.
If you have a big shed that requires long ducting then a small DC won't cope so well. As a general recommendation I recommend 2HPs be used with no more than about 3m of 6" ducting and a short (1/2 meter) piece of flexy. This does not mean they will not work beyond that length - they will still pick up most chips but be less effective at fine dust collection.
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11th April 2021, 12:15 PM #3
I have given up sucking up long shavings with my (non pre-seperator) DC. Long shavings kept getting wrapped around the impeller, necessitating the need to manually clean it out.
Now I just sweep them into a big pile, pick up with my hands and put in a shavings bin, them vacuum up the left over dust and little shavings which don't cause an issue.
The bonus is that we have a constant supply of clean, fluffy shavings for the chickens.
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13th April 2021, 10:08 PM #4Senior Member
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The hand plane shavings just spiral around in my Clear Vue - some don't settle to the bottom until I turn off the DC but they do get there in the end.
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14th April 2021, 12:44 AM #5GOLD MEMBER
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Pat, that behaviour is normal as the shavings basically get suspended due to their size and lack of weight.
CHRIS
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3rd January 2022, 08:10 AM #6Member
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I'm back with a report. Right now I have a 1.5 hp bag collector with a 10" impeller. As an experiment, I tried sucking up hand plane shavings.
Small, narrow shavings from addressing an arris (sharp corner) with a spokeshave worked fine. However, big shavings from using my jointer plane instantly wrapped around the impeller and I could hear the impeller sound change. I had to disconnect the inlet and pull the shavings out by hand. This happened almost every time with as little as one shaving, so I definitely won't be sending my hand plane shavings through a single stage collector.
Mark
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3rd January 2022, 09:02 AM #7.
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3rd January 2022, 01:11 PM #8
The only snag I ever had with my Pentz designed cyclone was when green turning bowl blanks... which rapidly produces a great volume of very long damp stringy ribbons of wood that twist together into ropy lengths that knot together in the cyclonic air stream and then won't feed into the drop bin. I now position the DE duct intake to avoid the green shavings getting fed into the cyclone... and just shovel up off the floor later.
I wouldn't expect the same issue with dry thin shavings.Stay sharp and stay safe!
Neil
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